It's just soccer, bicycle racing, weight lifting, sprinting, marathon running, ..., no need to submit to a urine and blood test, if you want to compete in the olympics. That sucks the fun out of it. /s
With respect, in those examples the extreme amount of money to be made with the first place motivates the cheating. The anti-cheat for such competitions only barely works, as top competitors do as many (possibly dangerous) things they can to come out on top. As long as they are undetectable. We should approach a disincentive to cheating in a different way, so it is just a few lemons as it is in chess.